.page-about {
  display: block;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 18px 72px;
  color: var(--white);
  font-family: var(--sans);
}

@media (min-width: 900px) {
  .page-about {
    padding: 40px 32px 96px;
  }
}

/* 面包屑 */
.page-about .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-about .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color .18s ease, border-color .18s ease;
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .crumbs__sep {
  color: var(--line);
}

.page-about .crumbs__current {
  color: var(--cyan);
}

/* 品牌声明 */
.page-about .about-hero {
  display: grid;
  gap: 26px;
  padding: 24px;
  border: 2px solid var(--line);
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(77, 255, 210, .14), transparent 58%),
    linear-gradient(155deg, var(--ink-2) 0%, var(--ink) 62%);
  box-shadow: var(--hard);
}

@media (min-width: 880px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 40px;
    padding: 40px;
    align-items: start;
  }
}

.page-about .about-kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: rgba(255, 162, 77, .08);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .about-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 7vw, 52px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--white);
}

.page-about .about-hero h1 em {
  font-style: normal;
  color: var(--cyan);
}

.page-about .about-hero__lead {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-hero__lead:last-of-type {
  margin-bottom: 0;
}

.page-about .about-hero__lead strong {
  color: var(--white);
  font-weight: 600;
  font-family: var(--mono);
}

.page-about .about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

/* 图像块 */
.page-about .about-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--pine);
  overflow: hidden;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.72) contrast(1.05) brightness(.94);
}

.page-about .about-hero__media img {
  aspect-ratio: 7 / 5;
}

.page-about .about-figure__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

/* 运营数字条 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin: 34px 0 52px;
  border: 2px solid var(--line);
  background: var(--line);
}

@media (min-width: 780px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .about-stat {
  padding: 18px 16px;
  background: var(--ink-2);
}

.page-about .about-stat__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: clamp(24px, 5.4vw, 38px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-about .about-stat--alt .about-stat__num {
  color: var(--orange);
}

.page-about .about-stat__label {
  display: block;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* 主体骨架 */
.page-about .about-shell {
  display: grid;
  gap: 32px;
}

@media (min-width: 1000px) {
  .page-about .about-shell {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* 章节轨道 */
.page-about .about-index {
  padding: 14px;
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--hard-sm);
}

@media (min-width: 1000px) {
  .page-about .about-index {
    position: sticky;
    top: 28px;
  }
}

.page-about .about-index__label {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 1000px) {
  .page-about .about-index__list {
    display: block;
  }

  .page-about .about-index__list > li + li {
    margin-top: 4px;
  }
}

.page-about .about-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  border-left: 3px solid var(--line);
  background: rgba(232, 245, 239, .03);
  font-size: 14px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan-dim);
  background: rgba(77, 255, 210, .07);
}

.page-about .about-index__link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(77, 255, 210, .1);
}

.page-about .about-index__num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan-dim);
}

.page-about .about-index__link[aria-current="true"] .about-index__num {
  color: var(--cyan);
}

/* 章节通用 */
.page-about .about-section {
  padding-bottom: 44px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.page-about .about-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-about .about-section__head {
  margin-bottom: 20px;
}

.page-about .about-section__kicker {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-about .about-section h2 {
  margin: 0;
  font-size: clamp(21px, 4.6vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--white);
}

.page-about .about-section h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 4px;
  margin-top: 12px;
  background: var(--cyan);
}

.page-about .about-section > p,
.page-about .prose > p {
  margin: 0 0 15px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-section > p:last-child,
.page-about .prose > p:last-child {
  margin-bottom: 0;
}

.page-about .about-section > p strong,
.page-about .prose > p strong {
  color: var(--white);
  font-weight: 600;
}

.page-about a.inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  transition: color .18s ease, border-bottom-color .18s ease;
}

.page-about a.inline-link:hover,
.page-about a.inline-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

/* 赛季时间线 */
.page-about .season-track {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .season-track__item {
  position: relative;
  padding: 16px 18px 18px 22px;
  border: 2px solid var(--line);
  background: var(--ink-2);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-about .season-track__item + .season-track__item {
  margin-top: 12px;
}

.page-about .season-track__item::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 20px;
  width: 4px;
  height: 22px;
  background: var(--cyan-dim);
  transition: background .2s ease, height .2s ease;
}

.page-about .season-track__item:hover {
  transform: translateX(4px);
  border-color: var(--cyan-dim);
  box-shadow: var(--hard-sm);
}

.page-about .season-track__item:hover::before {
  background: var(--cyan);
  height: 34px;
}

.page-about .season-track__item--now {
  background: linear-gradient(140deg, var(--pine), var(--ink-2));
}

.page-about .season-track__idx {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink);
  background: var(--cyan);
}

.page-about .season-track__item--now .season-track__idx {
  background: var(--orange);
}

.page-about .season-track__item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--white);
}

.page-about .season-track__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* 数据口径 */
.page-about .method-split {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

@media (min-width: 820px) {
  .page-about .method-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 32px;
    align-items: start;
  }
}

.page-about .spec-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line);
}

.page-about .spec-list > li {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

@media (min-width: 620px) {
  .page-about .spec-list > li {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

.page-about .spec-list__key {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* 团队 */
.page-about .team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.page-about .team-card {
  padding: 16px;
  border: 2px solid var(--line);
  background: var(--ink-2);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-about .team-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: var(--hard-sm);
}

.page-about .team-card__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-about .team-card__role {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-about .team-card .team-card__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.62;
  color: var(--muted);
}

.page-about .team-note {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 4px solid var(--orange);
  background: rgba(255, 162, 77, .07);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* 成都赛事 */
.page-about .city-split {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

@media (min-width: 820px) {
  .page-about .city-split {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 30px;
    align-items: start;
  }
}

.page-about .swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .swatch {
  flex: 1 1 150px;
  padding: 10px 12px;
  border: 2px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .swatch::before {
  content: "";
  display: block;
  height: 6px;
  margin-bottom: 8px;
  background: var(--cyan);
}

.page-about .swatch--orange::before {
  background: var(--orange);
}

/* 资质与合作 */
.page-about .cred-grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

@media (min-width: 720px) {
  .page-about .cred-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .cred-card {
  padding: 18px;
  border: 2px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--hard-sm);
}

.page-about .cred-card__label {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .cred-card__icp {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--cyan);
  word-break: break-all;
}

.page-about .cred-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .cred-list > li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .cred-list > li + li {
  margin-top: 8px;
}

.page-about .cred-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

/* 页尾引导 */
.page-about .about-cta {
  display: grid;
  gap: 16px;
  margin-top: 52px;
  padding: 22px;
  border: 2px solid var(--cyan-dim);
  background: linear-gradient(130deg, var(--pine), var(--ink-2));
  box-shadow: var(--hard-sm);
}

@media (min-width: 760px) {
  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
    padding: 26px 28px;
  }
}

.page-about .about-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-cta .btn {
  justify-self: start;
}

/* 渐进增强的进入动效 */
@media (scripting: enabled) {
  .page-about [data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .5s ease, transform .5s ease;
  }

  .page-about [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .page-about .season-track__item,
  .page-about .team-card {
    transition: none;
  }

  .page-about .season-track__item:hover,
  .page-about .team-card:hover {
    transform: none;
  }
}